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J. E. KELLY.

COMBINED SPEAKING AND SIGNALING APPARATUS. No. 385,357. Patuly 3, 1888.

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ATENT Erica,

JOHN E. KELLY, OF CAMDEN, NEW JERSEY.

COMBINED SPEAKING AND SIGNALING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 385,357, dated July 3, 18188.

Application filed May 12, 1887. Serial No. 238,017. (No model.)

To all whom it may concern:

Be it known that I, JOHN E. KELLY, of Camden, county of Camden, and State of New Jersey,have invented an Improvement in Combined Speaking and Signaling Apparatus, of which the following is a specification.

My invention has reference to speakingtubes and analogous apparatus and signaling devices therefor; and it consists of certain improvements, all of which are fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

In my application filed August 30,1886, Serial No. 212,143, is described a form of speaking-tube and transmitting-instrument in which the ear=tube may be turned to suit the right or left car. In this application I employ substantiall y the same construction and utilize the movements of the ear-tube to operate the signals. The signals are operated electrically, so that the bell at the transmitting-station as well as that at the receivingstation are simultaneously rung when the person desiring to send the message lifts the ear-tube into position to the ear. By this means the sender of the message is always assured that his bell is in working order. The speaking-tube or the telephone-wire in the mechanical telephone is used asthe return-conductor for the circuit.

In the case of hotels the speaking-transmittcr in the office is provided with a key-board which connects the battery-circuit with any room desired, the device when set operating in substantially the same manner as in the case of two station connections above referred to. In the case of speakingtubes used in systems like this I form it with a groove, into which the outgoing conductor-wires are placed for compactness and convenience.

The various details may be modified and the circuits coupled up in various ways with-- nections where only two stations are employed. Fig. 4 is a front elevation .of the transmitting and receiving apparatus shown in Fig. 1. Fig. 5 is a rear elevation of same, showing the key-board attached. Fig. 6 is a sectional elevation of same on line 5c 00. Fig. 7 is a cross section of the speaking-tube, and Fig. 8 is a sectional elevation of amechanical telephone having my system of electric signal applied thereto.

The construction of receiving and transmiting apparatus shown in the various figures, whether for speaking-tubes or mechanical telephones, isin all material respectsthe same. as that set out in my application filed August 30, 1886, Serial No. 212,143, and therefore in this application the essential feature of the invention relates to signaling apparatus when combined and operating in conjunction with and by the manipulation of the transmitting and receiving instruments.

A represents the speaking-tube, which may be extended from floor to floor as desired.

B represents the receiving and transmitting attachment therefor in the office of the building, and 0 represents the receiving and trans mitting apparatus on the variousfloors or in the various compartments. In construction these receiving and transmitting instruments B and G are substantially the same, each consisting of a chamber, 0 in which the speaking-tube sections enter, and to which is pivoted, at c, a tubular part, 0, terminating in a fixed mouth piece, D, and in a laterally-extending flexible ear-tube, E, terminating in an earpiece, c. From this construction it is evident that normally or when out of use the ear-tube E hangs down vertically, but when raised to a position for either the right or left ear (for instance as indicated in dotted lines, Fig. 4) the tubular part 0 is rotated a quarter of a revolution, or thereabout, and this movement, through the mediation of contact-fingers G F, is caused to operate the signals. Thus the act of bringing the transmitting and receiving instrument into operative-position causes the signals to be rung at either or both ends of the line. The contacts are shown in Figs. 4 and 5, in which it will be seen that F is simply a bent wire, preferably having an amount of flexibility, and contact G is made W-shaped, with. the lower bends g in the path of the contact-finger F, so that as these contacts pass each other two successive alarms are sent down the line.

The contact G is so secured to the chamber O as to be insulated from it, and is therefore stationary, whereas the contact F is secured to the rotatable part and moves with it when raising the ear-tube to the car,

In the case of the office transmitting and receiving instrument, Figs. 5 and 6, there are as many contactfingers G as there are instruments C connected with the line, and these contact-fingers are held out of the operative position by springs H, and may be pressed into operative position by pushing upon the buttons G. As shown in Fig. 5, one ofthese contact-fingers is pushed into operative position and the other is held out of such position.

Referring now to Fig. 2, we have the contact-fingers G of the receivirig-instrument (J in connection with one pole of the battery K by a circuit, J, which includes the signal bellI in the office. The other pole of the battery is connected with the speaking-tube. The contact-fingers F carried by the part 0 would be insulated therefrom. The finger F of the transmitter B would be connected with the circuit J by a wire, it, so as to connect with the battery K through its signalbell I. The contacts F of the transmitters 0 connect, respectively, with contacts G of office-transmitter B by wires L t, and they are also connected with signals I, as shown.

The operation may now be described as follows: The clerk in the office may signal either of the stations 0 O by simply pressing in the corresponding contact, G, and then lifting the ear-tube. This will cause the current to pass from battery .K through circuit J, signal I, circuit 70, contacts F G, either one of circuits 1', signal I of the station 0 to be signaled, and return by tube A to battery K. If a person at station 0 desires to call up the office, the lifting of the ear-tube will cause the contact F to close the circuit with G. WVe will then have the current from battery K, circuit J, through signal I in office, through contacts F and G, wire L, circuit J, signal I at the transmitting-station, and return by tube A to battery. These various wires, J i, may be inserted in a longitudinal groove, a, formed in the face of the speaking-tube A, as shown in Fig. 7, and thereby be conveniently conveyed through the building.

In the case of the telephone transmitter and would be in connection with the speaking.

tube A as a conductor. In this construction the speaking tube near each end is provided with a small insulating section, A, of glass or porcelain or other vitreous substance, which are bridged by circuits M, including the signalbells I. The contact F normally rests in contact with a finger, f, which connects by circuit N with one pole of battery K, and the two contacts G are connected together and with the other pole of the battery by a circuit, J. It will now be observed that by turning the contact F in the lower transmitter it will break the circuit atf and close the circuit at G. The effect of this will be that the current will'pass from battery K through contacts G F, tube A, and both bells I, contactfingers F and f at the upper station, and by wire N to battery. This will signal both stations. The reverse operation will operate in the same manner, whereby the upper station may signal the lower.

It will be seen that when lifting the eartube to the ear the signals are rung, and after getting through with the conversation the fall of 9c the eartube rings the signals to indicate that the operator is through.

It is evident that the particular features 0 the circuits may be modified in a large number of ways without changing the invention, the essential feature of which is the signaling through the movement of the transmitting or receiving instruments. Therefore,while I prefer the construction shown, I do not limit myself thereto.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The, combination of a speaking-tube, two mouth-pieces, and hearing or ear pieces, arranged in pairs and at a distance apart, and in which each mouth-piece has a movable earpiece, an electric circuit, including electric signals in said circuit and located near the IIO signals in said circuit and located near the ear-piece, and switches operated by the movable ear-piece at one transmitter to complete or break said circuit to ring the home and also the distant signal.

3. The combination of an office speechtransmitting instrument, two or more distant transmitting-instruments, the officetransmitter having a movable ear-piece, electric signals at the office and distant transmitting-instruments, a separate electric circuit to connect each of the distant signals with the office, two or more circuit-controlling devices operated by the movable ear-piece of the office-transmitter, and key-board to bring either circuitcontrolling device into operative position.

4.. The combination of an office speechtransmitting instrument, two or more distant transmitting-instruments, all of said instruments having movable ear-pieces, electric signals at the office and distant transmittinginstruments, a separate electric circuit to connect each of the distant signals with the office, two or more circuit-controlling devices oper ated by the movable ear-piece of the o'liicetransmitter, a keyboard to bring either circuit-contro1ling device into operative position, and a signal in the office, also operated by the movable ear-piece, whereby the office and dis tant signals are simultaneously rung.

5. The combination of an olfice speech-transmitting instrument,two or more distant transmitting-instruments, all of said instruments having movable ear-pieces, electric signals at the office and distant transmitting-instruments, a separate electric circuit to connect each of the distant signals with the office, two or more circuit-controlling devices operated by the movable ear-piece of the oitice-transmitter, a key-board to bring either circuit-eontrolling device into operative position, an electric circuit from said distant transmitting instruments, including the office-signal, and circuitcontrolling devices operated by the movable ear-piece of either of said distant transmitters.

6. Thecoinbinationofanoffice speechtransmitting instrument,two or more distant trans initting-instruments, all of said instruments having movable ear-pieces, electric signals at the officeanddistanttransmitting-instrnments, a separate electric circuit to connect each of the distant signals with the office, two or more circuit'controlling devices operated by the movable ear-piece of the OFficetransmitter, a key-board to bring either circuit-controlling device into operative position, an electric circuit from said distant transmitting instruments, including the distant and ofliee signal, and circuit controlliugdevices operated by the movable earpiece of either of said distant transmitters to simultaneously ring the office and distant signals.

7i A speech-transmitting instrument consisting of a stationary part and a movable earpiece, a signaling contact-finger secured to the stationary part, and a signaling contact-finger secured to the movable ear-piece,said contacts being insulated from each other and adapted to touch upon moving the ear-piece, and a signaling-circuit including said contacts.

8. A speechtransmitting instrument consisting of a stationary part and a movable earpiece, in combination with two or more movable signaling eontact-iingers carried by the stationary piece,and a movable signaling contact-finger carried by the ear-piece, whereby either contact carried by the stationary piece may be moved into operative position for con tact with the movable contact-finger carried by the ear-piece, and signalingcircuits, each including one of said contacts.

9. The combination of stationary part C with movable part 0' of a transmitting device for speech, a movable spring contact-finger, F, secured to part 0, and a stationary contactfinger, G, made W-shaped, to interrupt the circuit, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

JOHN E. KELLY.

Witnesses:

R. M. HUNTER, ANDREW ZANE, J r. 

